Apple CEO Tim Cook, wraps up a new product announcement presentation at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Apple CEO Tim Cook, wraps up a new product announcement presentation at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Apple CEO Tim Cook, wraps up a new product announcement presentation at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Apple CEO Tim Cook, wraps up a new product announcement presentation at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, discusses features of the new iPhone X at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, discusses features of the new iPhone X at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, discusses features of the new iPhone X at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, discusses features of the new iPhone X at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, discusses features of the new AirPower product at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, discusses features of the new iPhone X at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, discusses features of the new iPhone X at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, discusses features of the new iPhone X at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, discusses features of the new iPhone X at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Craig Federighi, Apple's senior vice president of software engineering, discusses features of the new iPhone X at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Craig Federighi, Apple's senior vice president of software engineering, discusses features of the new iPhone X at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Craig Federighi, Apple's senior vice president of software engineering, discusses features of the new iPhone X at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Craig Federighi, Apple's senior vice president of software engineering, discusses features of the new iPhone X at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Craig Federighi, Apple's senior vice president of software engineering, discusses features of the new iPhone X at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, announces features of the new iPhone X at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, announces features of the new iPhone X at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, announces features of the new iPhone X at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, announces features of the new iPhone X at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, announces features of the new iPhone X at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, announces features of the new iPhone X at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, announces features of the new iPhone X at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, announces features of the new iPhone X at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, announces features of the new iPhone X at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, announces features of the new iPhone X at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, announces features of the new iPhone X at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, announces features of the new iPhone X at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, announces features of the new iPhone X at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, announces features of the new iPhone X at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, announces features of the new iPhone X at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, announces features of the new iPhone X at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, announces features of the new iPhone X at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, announces features of the new iPhone X at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, announces features of the new iPhone X at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, left, takes over from CEO Tim Cook as they discuss the features of the new iPhone X at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, announces features of the new iPhone 8 at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, announces features of the new iPhone 8 at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, announces features of the new iPhone 8 at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, announces features of the new iPhone 8 at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, announces features of the new iPhone 8 at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, announces features of the new iPhone 8 at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, announces features of the new iPhone 8 at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, announces features of the new iPhone 8 at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, announces features of the new iPhone 8 at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, announces features of the new iPhone 8 at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, announces features of the new iPhone 8 at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, announces features of the new iPhone 8 at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, shows features of the new iPhone 8 at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, shows features of the new iPhone 8 at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, shows features of the new iPhone 8 at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, shows features of the new iPhone 8 at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, shows features of the new iPhone 8 at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, shows features of the new iPhone 8 at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, shows features of the new iPhone 8 at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, shows features of the new iPhone 8 at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, shows features of the new iPhone 8 at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, shows features of the new iPhone 8 at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, shows features of the new iPhone 8 at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, shows features of the new iPhone 8 at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, shows features of the new iPhone 8 at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, shows features of the new iPhone 8 at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, shows features of the new iPhone 8 at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, shows features of the new iPhone 8 at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, shows features of the new iPhone 8 at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, shows features of the new iPhone 8 at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, shows features of the new iPhone 8 at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, shows features of the new iPhone 8 at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, shows features of the new iPhone 8 at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, shows features of the new iPhone 8 at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, shows the new iPhone 8 at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, shows the new iPhone 8 at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, shows the new iPhone 8 at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, shows the new iPhone 8 at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, shows the new iPhone 8 at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, shows the new iPhone 8 at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, shows the new iPhone 8 at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, shows the new iPhone 8 at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, shows the new iPhone 8 at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, shows the new iPhone 8 at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, shows the new iPhone 8 at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Phil Schiller, Apple's senior vice president of worldwide marketing, shows the new iPhone 8 at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Apple CEO Tim Cook talks during a presentation on new products at the Steve Jobs Theater on the new Apple campus, Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Angela Ahrendts, Apple's Senior Vice President of Retail, discusses updates at Apple Stores before a new product announcement at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Angela Ahrendts, Apple's Senior Vice President of Retail, discusses updates at Apple Stores before a new product announcement at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Angela Ahrendts, Apple's Senior Vice President of Retail, discusses updates at Apple Stores before a new product announcement at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Angela Ahrendts, Apple's Senior Vice President of Retail, discusses updates at Apple Stores before a new product announcement at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Angela Ahrendts, Apple's Senior Vice President of Retail, discusses updates at Apple Stores before a new product announcement at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Angela Ahrendts, Apple's Senior Vice President of Retail, discusses updates at Apple Stores before a new product announcement at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Angela Ahrendts, Apple's Senior Vice President of Retail, discusses updates at Apple Stores before a new product announcement at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Angela Ahrendts, Apple's Senior Vice President of Retail, discusses updates at Apple Stores before a new product announcement at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Angela Ahrendts, Apple's Senior Vice President of Retail, discusses updates at Apple Stores before a new product announcement at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Apple CEO Tim Cook kicks off the event for a new product announcement at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Apple CEO Tim Cook kicks off the event for a new product announcement at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Apple CEO Tim Cook kicks off the event for a new product announcement at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

With a photo of former Apple co-founder and CEO Steve Jobs projected in the background, Apple CEO Tim Cook kicks off the event for a new product announcement at the Steve Jobs Theater on the new Apple campus, Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Apple CEO Tim Cook kicks off the event for a new product announcement at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Apple CEO Tim Cook kicks off the event for a new product announcement at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Apple CEO Tim Cook kicks off the event for a new product announcement at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Apple CEO Tim Cook kicks off the event for a new product announcement at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Apple CEO Tim Cook kicks off the event for a new product announcement at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Apple CEO Tim Cook kicks off the event for a new product announcement at the Steve Jobs Theater on the new Apple campus on Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

People arrive for a new product announcement at the Steve Jobs Theater on the new Apple campus, Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

People arrive for a new product announcement at the Steve Jobs Theater on the new Apple campus, Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

People arrive for a new product announcement at the Steve Jobs Theater on the new Apple campus, Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

People arrive for a new product announcement at the Steve Jobs Theater on the new Apple campus, Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

People arrive for a new product announcement at the Steve Jobs Theater on the new Apple campus, Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

People arrive for a new product announcement at the Steve Jobs Theater on the new Apple campus, Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

People arrive for a new product announcement at the Steve Jobs Theater on the new Apple campus, Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

People arrive for a new product announcement at the Steve Jobs Theater on the new Apple campus, Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

People arrive for a new product announcement at the Steve Jobs Theater on the new Apple campus, Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

People arrive for a new product announcement at the Steve Jobs Theater on the new Apple campus, Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

People arrive for a new product announcement at the Steve Jobs Theater on the new Apple campus, Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Apple co-founder Steve Wozniak and his wife, Janet Wozniak, arrive for a new product announcement at the Steve Jobs Theater on the new Apple campus, Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

The new Apple campus is seen early Tuesday, Sept. 12, 2017, before a new product announcement, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

Employees wait for people to arrive for a new product announcement at the Steve Jobs Theater on the new Apple campus, Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

The new Apple campus is seen early Tuesday, Sept. 12, 2017, before a new product announcement, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

People arrive for a new product announcement at the Steve Jobs Theater on the new Apple campus, Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

People arrive for a new product announcement at the Steve Jobs Theater on the new Apple campus, Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

People arrive for a new product announcement at the Steve Jobs Theater on the new Apple campus, Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

People arrive for a new product announcement at the Steve Jobs Theater on the new Apple campus, Tuesday, Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

An exterior view of Apple's new visitor center during an announcement of new products Sept. 12, 2017, in Cupertino , Calif. (AP Photo/Marcio Jose Sanchez)

An exterior view of Apple's new visitor center during an announcement of new products Sept. 12, 2017, in Cupertino , Calif. (AP Photo/Marcio Jose Sanchez)

An exterior view of Apple's new visitor center during an announcement of new products Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

An employee guards the entrance at Apple's new visitor center during an announcement of new products Sept. 12, 2017, in Cupertino, Calif. (AP Photo/Marcio Jose Sanchez)

An exterior view of Apple's new visitor center during an announcement of new products Sept. 12, 2017, in Cupertino , Calif. (AP Photo/Marcio Jose Sanchez)

An exterior view of Apple's new visitor center during an announcement of new products Sept. 12, 2017, in Cupertino , Calif. (AP Photo/Marcio Jose Sanchez)

An exterior view of Apple's new visitor center during an announcement of new products Sept. 12, 2017, in Cupertino , Calif. (AP Photo/Marcio Jose Sanchez)